Principales características físico-mecánicas de la madera de cinco especies forestales de la Cordillera de Guaniguanico
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Abstract
In the study they are related the physicalmechanical characteristics of five species of the mountain range of Guaniguanico: Quercus cubana A. Rich. (encino), Pithecellobium obovale (A. Rich.) Wr. (encinillo), Zantthoxylum elephantiasis Macfd. (bayúa), Poepiggia procera Presl. (tengue), Pithecellobium arboreum (L.) Urb. (sabicú moruro). The results of the research throw that the normal density is superior in all the cases 0,600 g/cm3, being the highest securities for the encino, with 0,871 g/cm3. The contraction relationships are favorable (1,6) except for the tengue that is lightly superior with 1,8. This result supposes quite uniform dimensional changes during the drying. In mechanical property, they are indicated bigger securities for the encino and the sabicú moruro, being in the static flexion more than 1000 kgf/cm2 and the tangential hardness as radial above 1000 kg. The compression so much parallel, as perpendicular they had maximum securities of 870 kgf/cm2 for the bayua and 363 kgf/cm2 for the encino.
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